1993年 第10卷 第1期
近年来,通过对已知正常形变核转动带的分析,发现了“等同带”(即具有惊人相似的转动惯量),本文利用一个严格的判据,比较了A=150～190质量区奇A核及其相邻A—1偶—偶核的转动带,发现“等同带”对应于奇A核中占据上升轨道的粒子态。这意味着,“等同带”的出现可能是由于对关联减弱和形变减小两者对转动惯量的影响相互抵消的结果。 "Identical bands" (i. e. those with surprisingly similar moments of inertia) have beenfound through several analyses of known bands in normally deformed nuclei. In this paper, we analyzebands in odd-proton nuclei (A=150～190) and A-1 even-even adjacent nuclei with stringentcriteria. The "identical bands" are found to be associated with upsloping particle states. Therefore thecause of occuring "identical bands" may be a cancellation of effects on the moment of inertia betweenpairing and....
本文分析了FKK多步复合核理论中,考虑模型空间限制在束缚态空间情况下,对能谱形状的影响及各种可能发射模式对能谱贡献的相对重要性,得出了能谱的高能硬尾,主要由不改变反应初始阶段总激子数的两激子散射过程v=0的发射模式决定的结论。 Relative contributions of possible threee exit modes to the spectrum of FKK multistepcompound process are analysed with considering effects caused by the restriction of model space tobound configurations. It has been found that high-energy tail of the spectrum is mainly dominated bythe emission through ν=0 mode i. e. through the scattering of two excitons without changing totalexciton number.
本文总结了偶偶核系统学研究结果。这是近年来兴起的一个领域,主要包括:用已有模型对偶偶核能谱和电磁跃迁性质及其演化规律进行系统分析,从实验数据中提取经验公式等。可以预料,偶偶核性质的系统学研究在今后几年内,还会有新的发展。 The study of systematics for the properties of even-even nuclei, which is a newresearch field in nuclei structure, is reviewed here. The primary results, including systematic analysisof energy spectra and electromagnetic transition, and the empirical law extracted from experimentaldata, are presented. It is expected that there will be new developments in the next few years in thisfield.
本文研究了中、重质量核的14MeV中子的(n,~3He)反应截面的系统学特性,在对实验数据分析,评价的基础上,给出了系统学的经验公式,计算了一批核素的反应截面,同实验值符合较好,并讨论了可能的反应机制。 The systematic characters of (n, ~3He) reaction cross sections have been studied formedium and heavy mass nucleus at 14MeV. A set of the empirital parameters have been eatracted onthe bases of analyzing and evaluating available data. The (n,~3He) reaction cross sections of somenuclei have been calculated, and a good agreement with the experimental data have been obtained.Most possible reaction mechanisms are also discussed.
本文主要描述了聚变研究中所需要的一些原子和分子物理过程的数据,这些数据有待今后在实验和理论研究中加以确定。 The atomic and molecular data on physical processes in fusion research are described.These data will be confirmed by experiment and theory in the future.
微剂量学是交叉学科的新兴领域,研究粒子在物质中能量沉积的微区分布和放射生物学效应,本文主要对微剂量学研究的进展,包括粒子的径迹结构,能量沉积和微剂量学实验技术等方面作一概述。 Microdosimetry is a rapidly developing field in the multi-disciplines. It studies energydeposition processes in media with particular interesting to living system. This paper gives short reviewon the recent progress in the study of microdosimetry including the track structure of ionzing particlesenergy deposition and new microdosimetric experimental techniques.
核技术是一门高新科技,在我国,核技术事业的发展是迅速的,已经取得很大成绩,本文曾作为全国第二次核技术应用战略研讨会上的综述报告,主要论述了核技术在当前国际上发展的若干特点,对核技术提出了确切的分类方法,并着重探讨了我国核技术发展现阶段存在的若干问题及其对策。 The nuclear techniques is a high new science and technology and is developing at topspeed in China. The great achievements have been made in developments on nuclear techniques. In thispaper the several characteristics of recent international developments in nuclear techniques arediscussed and a precise classfication is suggested. Particularly the present problems and theircountermeasures of rerent developments in nuclear techniques in China are explored.
本文叙述了高架点源非连续排放的废空气烟羽的γ剂量估算方法,并给出了部分估计算结果,讨论了该方法的应用前景。 A method of evaluating the γ-submersion dose from the waste air-plume emitted by elevated point sources is presented in this paper. Results of the calculation are given in figures.Application of the method is discussed.
本文介绍了正电子湮没技术在聚合物材料科学研究中的主要应用,表明:正电子湮没技术在聚合物材料科学的研究中是一种极其有用的实验方法。 In this paper, the applications of positron annihilation technique in studying of polmermaterial science are reviewed, which indicate that positron annihilation technique is a very usefulexperimental method in studying of polmers.
本文将简要介绍自然γ能谱,活化γ能谱和瞬发γ能谱在地球物理核测井中的应用及发展前景。This paper introduces briefly the applications of natural, radioctive and promt γ raysenergy spectrum analysis to the geophysical well logging as well as its prospects.
本文对模块式高温气冷堆(MHTGR)设计应采用的安全原则和技术要求提出了一些看法,以供探讨,并对设计基准事故的分析、评价和要求作出简明叙述。 In this paper, for discussing only, some views on the safety principles and technicalrequirements to be used in design of MHTGR are presented, and the requirements for analysing andevaluating of design-basis accidents are described briefly.
本文简要介绍了评价核结构数据库(ENSDF)的组织结构、核数据的内容和应用范围、数据的及时更新和为各国用户的优良服务。 This paper introduces the following fields of Evaluated Nuclear Structure Data File,which are file organization and structure, evaluated data contents, application fields and in-timeupdate, and good services to world-wide users.